Battery-terminal-connection puller



Feb. 18, 1930. J w BROWN 1,747,925

BATTERY TERMINAL CONNECTION FULLER Filed March 2, 1928 INVENTOR BY Ma ATTORNEY Patented Feb. 18, 1930 JOHN W. BROWN, 01 FORT wAYNE, INDIANA BATTERY-TERMINAL-CONNECTION FULLER Application filed March 2, 1928. Serial No. 258,509.

This invention relates to improvements in battery terminal connection pullers, and the obi'ect thereof is to provide a compact portab e tool for removing terminal connections 5 from battery terminal posts, and which can be operably applied in a manner whereby the usual pounding, twisting and pr ing operations, which ordinarily damage t e terminal posts, are obviated.

This object is accomplished by the construction illustrated in the ao'oompanying drawing which is a side elevation of a tool embodying the invention applied to the post and-terminal connection of a battery.

The characters appearing in the description refer to parts shown in the drawing and designated thereon by corresponding characters.

The invention consists of a 3ack-screw 1 having an o erating rod 2 extending trans- Q versely and oosely through its head 3. The

lower end of the screw has an axial stud 4, upon which is loosely mounted a bearing cup 5, the rim 6 of the cup being pressed into an annular groove 7 in said stud so that removal of the cup from thestud is prevented.

The jack-screw 1 has threaded relation with a cross-head 8 through which the jackscrew extends at a point nearer one end of the cross-head than the other. A grapple member 9 is rigidly fixed in one end of the crosshead and extends downward therefrom, the 7 lower end of the grapple having an inturned hook 10 with an upturned tip 11, and a second grapple member 12 is fixed in the opposite end of the cross-head and extends downwardly therefrom. The lower end of the grapp e member 12 has an inwardly extending hook 13 having an upturned tip 14. The grapple member 12 is of greater length than the other grapple member, its tip 14 being in a relatively lower lane than that of the tip 11 on the hook of t e other grapple member.

In utilizing the invention the tool is positioned so that the tip 11 of the grapple member 9 is in contact with the bottom of the terminal connection 15 beneath the bolt 16 and so that the cup 5 rests upon the top of the terminal 17 of the battery 18. When the tool is thus placed, the hook 13 of the grapple member. 12 extends beneath the cable lug 19 of the terminal connection, and upon turning the jack-screw the cross-head is elevated and the terminal connection becomes engaged by the hook 13 of the grapple 12. By applying further turning movement to the screw the 56 upward pressure is exerted against the terminal connection by the grapples while downward pressure is applied by the screw upon the terminal post and the terminal connection is forcibly withdrawn from said 0st. 60 The grapple members and cross-head ave fixed relation with each other and relative movement of the hooks of the grapple members is thereby prevented.

As the grapple member 12 is of greater length than the other grapple member, the cross-head is brought to a tilting position when the tips of the hooks come into forcible contact with the terminal connection, and the Jack-screw is correspondingly tilted. The jack-screw being located nearer the member 9 than the other causes the member 9 to exert greater lifting force as compared with that of the other, and also, prevents the book 10 from slipping from beneath the terminal connection when the pressure of the screw is applied to the post. This is of advantage inasmuch as that side of the terminal connection having the bolt- 16 therein yields more readily from its position on the post than the opposite portion when the bolt is loosened, and thus the terminal connection is more readily withdrawn.

What I claim is 1. A puller for battery terminal connections consisting of a cross-head; a pair of pendant grapple members in fixed relation with said cross-head, one at each end thereof, each member having an inturned hook at its lower end provided with an upturned tip; a jack-screw extending through said cross-head at a point unequally spaced from said grapple members; and a cup loosely secured upon the lower end of said screw.

2. In a tool for removing battery terminal connections from their terminal posts, a terminal connection engaging member consisting of a cross-head provided with a pair of spaced grapple members of unequal length, each grapple member being rigidly fixed to the cross-head and provided at its lower end with an inturned hook, and a j ack-screw having threaded relation with said cross-head through that portion thereof between said grapple members at a point therein spaced nearer the short grapple member than to the other member.

3. A tool for removing battery terminal connections from their posts consisting of a terminal connection engaging member having a cross-head and a pair of rigid grapple members depending therefrom, each grapple membenhaving an inturned hook, and a aekscrew threaded in the cross-head at a point therein unequally spaced from said grapple members.

In testimony whereof I aflix my signature.

JOHN W. BROWN. 

